Abstract
Objective: To analyse and compare the value of different modalities of radiologic imaging for rib metastasis. Methods: Thirty-eight patients with rib metastasis were examined: 17 cases were examined by plain films, 21 cases underwent CR, 7 cases underwent chest SCT and thin slice reconstruction, 6 cases underwent thin slice SCT and 7 cases slope scanning; 18 cases underwent chest MSCT and thin slice reconstruction, 2D MPR, 3D VR and 3D MIP respectively. Results: In 38 rib metastases, X-ray film and CR demonstrate the location accurately and diagnostic accuracy was 71.0% and 74.3% respectively. There was no difference between them(P>0.05); Image of SCT and MSCT could demonstrate small rib disease and diagnostic accuracy was 91.0% and 92.6% respectively. There is significant difference between CT and X-ray film or CT and CR(P<0.05). Diagnostic accuracy of thin slice image is 100%, so it is used as contrast standard. 2D MPR play an assistant role to transverse image in diagnosis; 3D image could demonstrate the bony of thorax fully, so the location is clear and lesion could be viewed easily. Conclusion: SCT, MSCT, 2D and 3D reconstruction imaging have distinctive advantage in diagnosing rib metastasis, combination of conventional radiography and CR, diagnosing the character and location of the rib metastasis is the best.
Key words
Bone neoplasms /
Neoplasm metastasis /
Radiography /
Tomography /
X-ray computed
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LIU Hong-wen;WANG Zhi-ming;NIU Yu-jun.
Value and comparative analysis of radiologic imaging in the diagnosis of rib metastasis[J]. Journal of China Clinic Medical Imaging. 2008, 19(5): 343-345
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